diff --git a/hosts/build-coord/default.nix b/hosts/build-coord/default.nix
index 3c0ce60..8b469ea 100644
--- a/hosts/build-coord/default.nix
+++ b/hosts/build-coord/default.nix
@@ -13,6 +13,9 @@
     hydra.builders = lib.genList (i: "builder-${builtins.toString i}") 10;
   };
 
+  # Hydra is proxied.
+  bagel.raito.v6-proxy-awareness.enable = true;
+
   system.stateVersion = "24.05";
   deployment.targetHost = "build-coord.wob01.infra.forkos.org";
 }